Rugby player Ben Czislowski kept competing for more than three months despite the headaches that started after a clash with an opponent.

Czislowski was playing for Brisbane team Wynnum during the April 1 incident involving Tweed Heads forward Matt Austin. He had a head wound stitched up afterward, the Australian Associated Press reported Tuesday.

Czislowski later suffered an eye infection and complained of lethargy and shooting pains in his head.

Then last week, his doctor found a tooth imbedded in Czislowski's head.

"I can laugh about it now, but the doctor told me it could have been serious, with teeth carrying germs," Czislowski said.

"I've got the tooth at home, sitting on the bedside table," he said. "If he (Austin) wants it back he can have it. I'm keeping it at the moment as proof that it actually happened."